Our steel drum curling machine is the essential equipment that rolls flat steel sheets into cylindrical drum bodies, preparing them for the subsequent seam welding process. The machine features a three-roller configuration with upper and lower rollers arranged in a triangular pattern—the sheet metal passes between the driven lower rollers and the adjustable upper roller, progressively bending the flat plate into a round shell with minimal seam gap for smooth welding. This heavy-duty curler handles sheet thicknesses from 0.6mm to 1.5mm, accommodating standard 200L and 210L drum diameters (560–571.5mm) and lengths up to 950mm. The rolling process is controlled by a PLC system with servo-driven upper roller adjustment for precise roundness control within ±0.5mm. Integrated with an automatic sheet feeder and unloading mechanism, the machine can be configured as a standalone unit or combined with a seam welder to form a continuous “rolling-welding” production station. Backed by over 10 years of manufacturing experience, we provide customized curling solutions, installation guidance, and comprehensive after-sales support to ensure your drum bodies start with perfect roundness and consistent seam quality.